Patent US3813368A successfully refreshed from Google Patents.
US3813368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abietate modified polysulfide polymers
Assignee: ATK Launch Systems LLC
•
Filing: 1972-05-12
•
Granted: 1974-05-28
•
Expires: 1992-05-12
Abstract
Abstract A POLYSULFIDE POLYMER IS REACTED WITH ABIETIC ACID AND IS EFFECTIVE AS AN ADHESIVE ADDITIVE FOR A POLYSULFIDE POLYMER-BASED COMPOSITION USED AS SEALANTS OT BONDING AGENTS ON VARIOUS SUBSTRATES SUCH AS GLASS OR ALUMINUM.
Inventors
- 👤 J Villa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:13
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14; C08L; C08L81/00; C08L81/04; C09; C09J; C09J181/00; C09J181/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |